I.full of shade, shady, umbrageous (class.; cf. “opacus): locus umbrosior,” Cic. Q. Fr. 3, 1, 2, § 3: “fere aquosissima sunt quaecumque umbrosissima,” Sen. Q. N. 3, 11, 4: “fico folium maximum umbrosissimumque,” Plin. 16, 26, 49, § 113: “inter densas, umbrosa cacumina, fagos,” Verg. E. 2, 3: “Silae,” Prop. 1, 20, 7; Ov. M. 1, 693: “in umbrosis lucis,” Hor. C. 1, 4, 11: “nemus,” Ov. M. 7, 75: “salices,” id. F. 3, 17: “vallis,” Verg. G. 3, 331: “harundo,” id. A. 8, 34: “orae Heliconis,” Hor. C. 1, 12, 5: “arx Parnasi,” Ov. M. 1, 467: “Ida,” id. ib. 11, 762: “tecta,” Tib. 1, 4, 1: “cavernae,” Verg. A. 8, 242: “ripa,” Hor. C. 3, 1, 23: “templa,” Ov. M. 11, 360.—Subst. plur.: umbrōsa , ōrum, n., the twilight, dim light (opp. tenebrae, clara lux), Sen. Ep. 94, 20.
umbrōsus , a, um, adj. id.,